A triangle 4

A triangle has a perimeter of 18a + 6b + 15 and has sides of lengths 5a + 7 and 8a +4b, what is the length of the third side? Write an expression and simplify to find find the solution to the problem.

Result

Z = (Correct answer is: 5 a + 2 b + 8) Wrong answer

Step-by-step explanation:

p=18a+6b+15 X=5a+7 Y=8a+4b  p=X+Y+Z Z=pXY Z=18a+6b+15(5a+7)(8a+4b)  Z=5 a+2 b+8



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